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| Product Name: | Monopotassium phosphate | Other Name: | Phosphoric acid,potassium salt (1:1);Phosphoric acid,monopotassium salt;Monopotassium phosphate;Potassium acid phosphate;Potassium biphosphate;Potassium dihydrogen phosphate;Sorensen’s potassium phosphate;Monopotassium orthophosphate;Potassium phosphate (K(H2PO4));Potassium dihydrogen phosphate (KH2PO4);KDP;Monobasic potassium phosphate;Monopotassium dihydrogen phosphate;Dihydrogen potassium phosphate;Potassium dihydrogen orthophosphate;Potassium hydrogen phosphate (KH2PO4);Potassium diphosphate;Potassium monobasic phosphate (KH2PO4);Potassium phosphate monobasic;Nutri-Vant-PeaK;Monopotassium dihydrogen orthophosphate;MKP;Hydrogen potassium phosphate (H2KPO4);943540-09-8;1364712-44-6;2133444-20-7;2364332-00-1;2484993-14-6 |
| CAS No.: | 7778-77-0 | Molecular Formula: | H3O4P.K |
| InChIKeys: | InChIKey=PJNZPQUBCPKICU-UHFFFAOYSA-N | Molecular Weight: | 136.09 |
| Exact Mass: | 135.932770 | EC Number: | 231-913-4 |
| UNII: | 4J9FJ0HL51 | ICSC Number: | 1608 |
| DSSTox ID: | DTXSID0035667 | Color/Form: | Colorless crystals or white granular powder|White tetragonal crystals |
| HScode: | 28352400 | Categories: | Food Flavorings |
| PSA: | 80.6 | XLogP3: | -0.49040 |
| Appearance: | White transparent powder | Density: | 3″>2.34 g/cm3 |
| Melting Point: | 253 °C | Boiling Point: | 158ºC at 760 mmHg |
| Refractive Index: | Index of refraction: 1.5093, 1.4682, both at 589 nm | Water Solubility: | H2O: 222 g/L (20 ºC) |
| Storage Conditions: | Store at RT. | Toxicity: | 4640mg/kg”>LD50 skin in rabbit: > 4640mg/kg |
| Odor: | Odorless | PH: | Between 4,2 and 4,8 (1 % solution) |
| Experimental Properties: | Permanent in air. At 400 °C loses water, forming metaphosphate|pH = 4.5 (1% aqueous solution). Forms ferroelectric crystals (Critical temperature = -151 °C)|At ordinary temperatures, monopotassium phosphate is so far above its Curie point as to give piezoelectric effects in which the emf is proportional to the distorting force. There is virtually no hysteresis.|Curie point: 123 K; Spontaneous polarization: 4.7 uC/cu cm at 110 K | Critical Temperature & Pressure: | Critical temperature = -151 °C |
Classification of the substance or mixture
Not classified.
GHS label elements, including precautionary statements
| Pictogram(s) | No symbol. |
|---|---|
| Signal word |
No signal word |
| Hazard statement(s) |
none |
| Precautionary statement(s) | |
| Prevention |
none |
| Response |
none |
| Storage |
none |
| Disposal |
none |
Other hazards which do not result in classification
no data available
Precautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Separated from strong bases.Store at 20 to 25 deg C (68 to 77 deg F); excursions permitted to 15 to 30 deg C (59 to 86 deg F).
